These objects are components from a payload inventory originally intended for the University of Iowa package to be flown on Vanguard 1, and later on varius early Explorers. These are templates to guide the drilling of the flight hardware for the Vanguard package. They were produced in several evolutionary stages in the design process, and carry assorted markings. Part of an inventory from the initial "Deal" payloads designed and built by the University of Iowa. These are original and have been in the possession of George Ludwig with the exception of intervals when the components were used at JPL. Donated by Dr. George Ludwig in 2006.
.
This object is not on display at the National Air and Space Museum. It is either on loan or in storage.